At the Astronomical Society of France, amateur astronomers like the seamstress Madame LANGLOIS, Monsieur PLUMEAU, the postman, or Madame COLOMBET the grocer, observe the planet Mars.
The Tucson Arizona Research Center is experimenting under the name of "Biosphere 2" an ecosystem protected under a vast greenhouse and foreshadowing a possible future base on Mars. In the experimental greenhouse, the biosphere candidates select the plants they will take. Biologist David STUMPF presents the experiment he conducts with fish to purify plants.
The astronomer Audouin DOLLFUS explains the characteristics of the planet Mars (its distance from the sun, its rotation, its diameter, its density, its gravity and its color)
Interviewed by Louis PAUWELS and Jean FELLER, the nuclear physics specialist Jacques BERGIER, develops the thesis according to which beings originating from Mars or elsewhere would have brought in orbit of Mars an asteroid and would have dug it to make a huge laboratory.
Paul CEUZIN talks with astrophysicist Jacques BLAMONT about the characteristics of Mars. Thanks to a globe, the scientist explains that the volcanoes of this planet are all located in the same region, as well as the craters.
Ichtiaque RASOOL, scientific director at NASA, is interviewed on the "Viking" program. He recalls that this is the first experiment they carry out on the surface of another planet. He presents a model of the probe that will be sent to Mars, explaining the scientific objectives of this mission, including identifying the presence of life on the planet.